参数化单胞计算三维编织预制件纤维体积含量  

Calculation of the fabric volume fraction for three-dimensional braiding preform based on parameterized cell models

作　　者：冯驰[1] 吴晓青[1] 

机构地区：[1]天津工业大学先进纺织复合材料教育部重点实验室,天津300160

出　　处：《纺织学报》2007年第6期63-65,共3页Journal of Textile Research

基　　金：天津市自然科学基金资助项目(06YFJMJC03100;013604311)

摘　　要：在Pro/E中建立了三维编织预制件的内部单胞、表面单胞和棱角单胞的3D实体模型,并对模型进行了参数化设计。当编织工艺参数改变时能自动生成新的单胞模型,单胞纤维体积由Pro/E的模型分析功能直接输出。提出了基于参数化单胞计算预制件纤维体积含量的公式。计算了长方体形预制件的纤维体积含量,并与实测值进行比较,理论计算与实验结果吻合良好。计算了扇环形预制件的纤维体积含量,为复杂外形预制件纤维体积含量的计算提供了新方法。3D models of （interior, surfaee and corner） unit cells of the 3D braiding preform were established based on the characteristics of 3D entity modeling of Pro/E. Parameterized models were designed. Every kind of unit cell model can be auto created under different braiding parameters, and according to Pro/E model- analyzed function, the fabric volume of a cell can be output directly. The calculation formula of the perform fabric volume fraction was proposed based on parameterized cell models. The fabric volume fraction of the rectangular perform was calculated, and it is well in agreement with experiment result. The fabric volume fraction of annular sector perform was also calculated. It provides a new method for calculating fabric volume fraction of complex shape.

关 键 词：纤维体积含量 参数化 内部单胞 表面单胞 棱角单胞 

分 类 号：TB332[一般工业技术—材料科学与工程]